Abstract：
:Paradoxically, an allozyme study of Metepeira "spinipes" (sensu lato) demonstrated extensive gene flow among four populations whose members are nevertheless morphologically and behaviorally distinct. Initially, the authors tentatively concluded that the populations exhibited panmixis and suggested that local environmental effects accounted for the apparent morphological and behavioral differences. However, they later concluded that such differences were too great to be accounted for by the environment alone and that the four populations actually represented three different species. To confirm that the allozyme results were, in fact, artifactual, we reexamined the relationships among these populations by sequencing a portion of the 12S mtDNA ribosomal subunit. In contrast to the allozyme result, our results demonstrate good agreement between patterns of genetic and morphological/behavioral variation. We suggest (1) that the allozyme allele frequencies are homogenized by balancing selection, not gene flow as was previously concluded, and therefore (2) that this study provides another instance in which inferences about population structures from allozyme data are misleading.
journal_name
Mol Phylogenet Evoljournal_title
Molecular phylogenetics and evolutionauthors
Piel WH,Nutt KJdoi
10.1006/mpev.1999.0763keywords:
subject
Has Abstractpub_date
2000-06-01 00:00:00pages
414-8issue
3eissn
1055-7903issn
1095-9513pii
S1055790399907637journal_volume
15pub_type
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journal_title：Molecular phylogenetics and evolution
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journal_title：Molecular phylogenetics and evolution
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章,评审
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更新日期：2014-05-01 00:00:00
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1006/mpev.1999.0677
更新日期：1999-12-01 00:00:00
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1016/j.ympev.2018.06.009
更新日期：2018-10-01 00:00:00
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1016/s1055-7903(02)00039-8
更新日期：2002-06-01 00:00:00
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1016/j.ympev.2012.06.031
更新日期：2012-11-01 00:00:00
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1006/mpev.1999.0683
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journal_title：Molecular phylogenetics and evolution
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
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更新日期：2001-01-01 00:00:00
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
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更新日期：2019-07-01 00:00:00
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
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